This post didn't edit the way I thought it would so here's another try......
The buds are not dried they are cured and they cure during the 7-14 days it takes for the moisture to leave the buds, if the humidity is to low the moisture will leave to quickly and the buds will not cure properly. 30% is too low, you can control the humidity by limiting the amount of air leaving the closet just keep the humidity above 50% and 70' F, in a small space a wet cloth can raise the humidity, get a meter so you can tell because it's crucial to get a killer cure. The buds will get to a point where the outside just starts to crisp up but the inside is still moist the stem will be flexible, at this stage put the buds in a large paper grocery bag fill about 1/3 full lay it on it's side so the buds are spread out not piled up and close the top let it set overnight then check the moisture by bending the stem it should be flexible and the outer leaves will have rehydrate now leave the bag open until the outer leaves crisp up again then close and repeat if they are drying to fast you can put the bag into a plastic bag to slow it down. When the stem end snaps when bent put the buds in glass jars and check in a day to see if they are stable if they are now wait for them to mellow. This whole process can take up to 2 weeks so don't get in a hurry and smell it ever time you open the bag it should never have an ammonia smell that means it's molding, it will start to have a floral sent not the fresh green smell it had when first cut . The longer you flush the less nitrates you will have in the bud and the smother the smoke. The skippy on the extended dark period before harvest is that the plant produces trichromes at night and extending the dark period is suppose to make it more potent because the plant reacts to dark not light , try it with one and see. Take the buds off the plant leave enough stem to hang it up with, remove all the big leaves, hang em on a string and go for it. Good curing..........Hope that makes more sense........